Titanium Grade Ti-Pd17-ANN (Annealed)
Heat-treated state
ASTM B367 Grade Ti-Pd17
Use to remove casting and weld-repair residual stresses and to maximise ductility for forming/machining of thin sections.
Values for the ANN condition
Other Grade Ti-Pd17 tempers and conditions
Grade Ti-Pd17 is listed in 4 conditions; see the grade overview at Grade Ti-Pd17.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
ANNThis page Annealed | Use to remove casting and weld-repair residual stresses and to maximise ductility for forming/machining of thin sections. | 220 | 315 | 22 | 140 HB | 3.1 % IACS |
HIP + annealed | Highest-integrity condition: pore-free plus stress-free, for pressure-boundary and cyclically loaded corrosion castings. | 230 | 330 | 25 | 145 HB | 3.1 % IACS |
FDefault As fabricated | Default supply condition for corrosion-service castings where internal porosity is acceptable and only pressure-tightness is required. | 235 | 330 | 18 | 150 HB | — |
Hot isostatic pressed | Choose when internal shrinkage/gas porosity must be closed for fatigue-loaded or radiographically inspected castings. | 240 | 340 | 24 | 150 HB | 3.1 % IACS |
What is Grade Ti-Pd17-ANN?
Grade Ti-Pd17-ANN is Grade Ti-Pd17 heat treated to ANN — use to remove casting and weld-repair residual stresses and to maximise ductility for forming/machining of thin sections. Grade Ti-Pd17-ANN has a yield strength of 220 MPa (31.9 ksi) and a tensile strength of 315 MPa (45.7 ksi) — weaker than 97% of titanium grades. Elongation at break is 22% and the elastic modulus is 103 GPa (14.9 Msi). Grade Ti-Pd17-ANN has a density of 4.51 g/cm³ (0.163 lb/in³), heavier than 57% of titanium grades. It melts at 1,660°C (3,020 °F). F is the default condition FabDigit quotes; ANN is available on request or by drawing note.
Advantages
- Easy to machine — 42/100, better than 98% of titanium grades
- Conducts heat well — 17.5 W/m·K (10.1 BTU/hr·ft·°F), better than 90% of titanium grades
- High electrical conductivity — 3.1 % IACS, better than 75% of titanium grades
Limitations
- Low strength — 220 MPa (31.9 ksi), worse than 97% of titanium grades
Grade Ti-Pd17-ANN properties
Typical room-temperature values for Grade Ti-Pd17-ANN; 22 are specific to this condition. Other listed values are Grade Ti-Pd17 reference data and may not represent this condition. Bars are the position among titanium grades.
Physical3
Grade Ti-Pd17-ANN has a density of 4.51 g/cm³ (0.163 lb/in³), heavier than 57% of titanium grades. It melts at 1,660°C (3,020 °F).
Mechanical16
Grade Ti-Pd17-ANN has a yield strength of 220 MPa (31.9 ksi) and a tensile strength of 315 MPa (45.7 ksi) — weaker than 97% of titanium grades. Elongation at break is 22% and the elastic modulus is 103 GPa (14.9 Msi).
Thermal6
Grade Ti-Pd17-ANN is rated for continuous service to 300°C (572 °F). It conducts heat at 17.5 W/m·K (10.1 BTU/hr·ft·°F), better than 90% of titanium grades. Thermal expansion is 8.6 µm/m·K (4.78 µin/in·°F).
Electrical3
Grade Ti-Pd17-ANN conducts electricity at 3.1 % IACS, better than 75% of titanium grades.
Chemical & Environmental3
Corrosion resistance is excellent (97/100), better than 99% of titanium grades.
Sustainability4
Producing a kilogram of Grade Ti-Pd17-ANN takes about 650 MJ of energy and emits 40 kg of CO₂ — less than 75% of titanium grades. Typical recycled content is 35%.
Manufacturability8
Grade Ti-Pd17-ANN's machinability is fair (42/100, better than 98% of titanium grades); weldability excellent (88/100); formability poor (34/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Grade Ti-Pd17-ANN
Is Grade Ti-Pd17 easy to machine?
Machine like CP titanium: sharp uncoated-carbide or coated tools, low surface speed (~30–60 m/min), heavy positive rake, generous flood coolant; galling and built-up edge are the main issues, never dwell in the cut.
Can Grade Ti-Pd17 be welded?
Excellent GTAW/PAW/EBW weldability with matching Grade 17/Ti-Pd filler; requires full argon/helium shielding of pool, trailing shield and backpurge, scrupulous cleanliness, and weld-zone colour checks (silver/straw only).
Can Grade Ti-Pd17 be formed, bent or molded?
Supplied as vacuum-melted castings (investment shell or rammed graphite); expect ~1.5–2 % shrink allowance, an alpha-case layer to be chemically milled, and weld upgrade of indications per ASTM B367.
What surface finishes work on Grade Ti-Pd17?
Grit blast + pickle (HNO3/HF) to remove alpha case and scale; passivates naturally, can be anodised (AMS 2488) for colour or anti-galling, and polishes to a bright finish; do not plate for corrosion reasons.
Grade Ti-Pd17 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Pdpalladium addition for enhanced crevice/reducing-acid resistance | 0.04 – 0.08 | 0.06 |
| Olow-oxygen (Grade 17 level); some foundry practice permits slightly higher for castings | ≤ 0.18 | 0.12 |
| Fe | ≤ 0.2 | 0.08 |
| C | ≤ 0.1 | 0.02 |
| N | ≤ 0.03 | 0.01 |
| Hcast product; hydrogen checked after any weld repair | ≤ 0.02 | 0.01 |
| Residuals, each | ≤ 0.1 | — |
| Residuals, total | ≤ 0.4 | — |
| Ti | balance | — |
Grade Ti-Pd17-ANN — frequently asked
What is Grade Ti-Pd17-ANN used for?
Grade Ti-Pd17-ANN is typically used for chemical tank castings, corrosion-resistant fittings and marine hardware castings. In short: most corrosion-resistant cast titanium; highest-ductility cast Ti grade; pd-alloyed crevice resistance.
What is the yield strength of Grade Ti-Pd17-ANN?
Grade Ti-Pd17-ANN has a typical yield strength of 220 MPa (31.9 ksi) and a tensile strength of 315 MPa (45.7 ksi) — weaker than 97% of titanium grades. Strength varies by condition: see the 4 listed tempers.
Is Grade Ti-Pd17-ANN easy to machine?
Not especially — machinability is rated fair (42/100, better than 98% of titanium grades). Machine like CP titanium: sharp uncoated-carbide or coated tools, low surface speed (~30–60 m/min), heavy positive rake, generous flood coolant; galling and built-up edge are the main issues, never dwell in the cut.
Can Grade Ti-Pd17-ANN be welded?
Yes — weldability is rated excellent (88/100). Excellent GTAW/PAW/EBW weldability with matching Grade 17/Ti-Pd filler; requires full argon/helium shielding of pool, trailing shield and backpurge, scrupulous cleanliness, and weld-zone colour checks (silver/straw only).
What surface finishes work on Grade Ti-Pd17-ANN?
Grit blast + pickle (HNO3/HF) to remove alpha case and scale; passivates naturally, can be anodised (AMS 2488) for colour or anti-galling, and polishes to a bright finish; do not plate for corrosion reasons.
Can Grade Ti-Pd17-ANN be formed, bent or molded?
Supplied as vacuum-melted castings (investment shell or rammed graphite); expect ~1.5–2 % shrink allowance, an alpha-case layer to be chemically milled, and weld upgrade of indications per ASTM B367.
What is the maximum service temperature of Grade Ti-Pd17-ANN?
Grade Ti-Pd17-ANN is rated for continuous use to about 300°C (572 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between Grade Ti-Pd17-F and Grade Ti-Pd17-ANN?
F is the default condition — default supply condition for corrosion-service castings where internal porosity is acceptable and only pressure-tightness is required. ANN: use to remove casting and weld-repair residual stresses and to maximise ductility for forming/machining of thin sections. Yield strength is 235 MPa in F versus 220 MPa in ANN.
Sources
- ASTM B367 – Standard Specification for Titanium and Titanium Alloy Castings — ASTM International (2022)
- ASTM B265 / B348 – Titanium and Titanium Alloy Strip, Sheet, Plate and Bars (Grade 17 chemistry & properties) — ASTM International (2020)
- ASM Handbook Vol. 2 – Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- ASM Handbook Vol. 13B – Corrosion: Materials (Titanium and Ti-Pd alloys) — ASM International (2005)
- Corrosion-resistant titanium grades (Grade 7/11/16/17) technical data — TIMET / VSMPO (2021)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.